Calculating-machine.



' P. TRINKS.

CALCULATING MACHINE.

APPLIOATION FILED AUG. 18, 1913.

Patented Dec. 16, 1913.

4 SHEETS-SHEET 1.

1 warne COLUMBIA PLANDORAFH co., WASHINGTON, 0. c.

F. TRINKS.

CALCULATING MACHINE.

APPLIGATION FILED AUG.18,1913.

1,081,791 Patented Dec. 16, 1913.

4 SHEETS-SHEET 2,

P. THINKS.

CALCULATING MACHINE.

APPLICATION FILED AUG. 18, 1913.

Patented Dec. 16, 1913.

4 SHEETS-SEEET 3.

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P. TRINKS.

CALCULATING MACHINE.

APPLICATION FILED AUG. 18, 1913.

1 981,79 1 Patented Dec. 16, 1913.

4 SHEETS-SHEET 4.

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FRANZ TRINKS, OF BRUNSWICK, 'GERMANY.

CALCULATING-MACHINE.

Specification of Letters Patent.

Patented Dec. 16,1913.

Application filed August 18, 1913. Serial No. 785,369.

To an whom it may concern:

Be it known that I, FRANZ TRINKS, manufacturer, citizen of the Duchy of Brunswick, Empire of Germany, residing at Brunswick, Germany, have invented certain new and useful Improvements in Calculating-Machines, of which the following is a specification.

My invention relates to improvements in calculating machines, and more particularly in calculating machines in which the setting mechanism consists of setting disks carryingradially shiftable teeth which are adapted to be set in operative positions by means of cam disks mounted coaXially of the setting disks. Machines of this type are described for example in the patents of the United States No. 928,083, granted to me July 13, 1909, No. 953,242, granted to me March 29, 1910, and No. 1,040,059, granted to me October l, 1912. In machines of this type the setting of the values on the setting disks prior to transmitting the same to the regis tering mechanism is a rather inconvenient and tedious Operation, because each cam disk must be separately set by the hand of the operator. Besides the method of setting the disks is liable to cause errors in the cal culation. In many calculations the same number must several times be set on the setting disks. Therefore the operation of the calculating machine is simplified by apparatus by means of which the said number can easily be set on the setting disks in a mechanical way after once setting the same. This method also increases the chance of avoiding errors. Machines of this construction are described in my German Patent Nr. 181,681, filed July 18, 1906. In these ma chines the cam disks are automatically set by means of stop members which are adapted to be placed in the paths of the finger pieces of the cam disks provided for setting the same, which stop members arrest the cam disks which take part in the rotation of the machine crank, so that the setting disks which continue their rotations with the crank perform movements relatively to the machine crank. Furthermore calculating machines of this general type have been constructed in which two independent setting mechanisms are provided. Machines of this type are described in an application for patent of the United States filed by me December 31, 1912, Serial Number 7 39,494.

The ob ect of the improvements is to equip a calculating machine of this last named construction with the aforesaid apparatus for speedily setting numbers or with similar devices for receiving and keeping certain values, so that a number which has been set in one of the setting mechanisms can at any time be set in the second or any other setting mechanism.

With this object in view my invention consists in so constructing and arranging the said known or any preferred apparatus for speedily re-setting a number on the same setting mechanism, that after receiving the number set in the first setting mechanism it is adapted to be brought into position for cooperation with a second setting mechanism and to set the value thereon.

For the purpose of explaining the invention several examples embodying the same have been shown in the accompanying drawings, in which the same letters of reference have been used in all the views to indicate corresponding parts.

In said drawin 'sFigure 1, is a diagrammatical front View of a calculating machine designed for explaining the principle of the invention, Fig. 2, is a side view of Fig. 1, Fig. 3, is a front view partly in section of a calculating machine embodying the invention, Fig. 4, is a cross-section of Fig. 3 taken on the line 44, Figs. 5 and 6, are respectively a crosssection and a plan view of a modification of the calculating machine, Figs. 7 and 8, are two different cross-sections of a modification of the calculating machine shown in Figs. 5 and 6, and Figs. 9 to 11, are plan views of further modifications of the invention.

Referring to the diagrammatical view shown in Figs. 1 and 2, the calculating machine is equipped with a toothed plate 1 representing a single value, the notches of the plate corresponding to the numbers which are adapted to be set on the setting disks of either one of the setting mechanisms. The plate is adapted to be placed over either one of the setting mechanisms after setting all the finger pieces 3 of the cam disks in their nine positions. If now the crank is turned to the right or in the direction of the arrow 0: shown in Fig. 2, the finger pieces get into the notches 5 of the plate 1 and they can move only to the ends of the said notches. Thereby by one operation the value represented by the plate 1 is set on the setting mechanism. The plate 1 is shiftably mounted on the machine casing, for which purpose it is hinged to and longitudinally slidable on a rod 7 mounted on the upper rear margin of the casing, and it can 'beshifted along the said rod to the second set ting mechanism 6 and placed on the same, so thatthe same number can be set on the second setting mechanism. Figs. 3 and 4 show an example in which this principleis' put intoieft'ect. Asshown'in the said figures, .on the rear :upper margin .ofthe .machine casing a rod 81is provided, on \which a plate :9 is mounted the curved 'form of which corresponds to-(the cover 10 of the casing. For the matter of 1clearness I :have shown this plate in :rocked aposition. dVhen 1 placed on the cover of the casing the said plate bears onithesaidpover by-means of feet 11. The plate is formed with slots .12 which correspondtothe slots 13 ofthe cover of the casing. :In each slot 12a slide :let has a sliding support which provides the stop member for thecoiiperating finger piece 15 of the cooperating cam disk 15. l/Vhen shifting the said slides'in the direction of the arrowshown in Fig. ,4 knobs 14 formed at the bottom ends of the said slides strike against the finger .pieces 15 and carry the same along. Thereby-the cam disks 15 and the teeth of :the setting disks controlled thereby are set. On the other hand theteeth 17 can also be set byrotating the crank 4 of the machine. The stop members or slides :14 are adapted to be set on the plate in di'iferentpositions. Thereby anyidesired number canbe set in the manner described. For locking the stop members in the set positions ontheplate 9:1ocking means may be provided, whichin the example shownin the figures consist of a button 18;adapted to be depressedby the hand-ofthe operator and connected with the-knob 14 of theslide and normally forced outwardzby a spring 19, so that apin2O connected with the knob 14 engages in an enlargedportion 21 of the slot 12 or in'anotch of the plate 9-and locks the slide in position. By depressing the button 18 the slide 114 istreleased, so that it can be :shifted. The plate 9 is shiftably mounted on the rod 8, so that it can be brought into position for cooperation with asecond setting mechanism 16 which-is disposed coaxially of the first named setting mechanism and which is constructed in-the same way as the latter. Therefore plate 9 can be used as a means for transmitting a value from one setting mechanism to the other.

In theexampleshown in Figs. 5 and 6 the calculatingmachine is provided with other means for speedily setting the setting mechanism. As shown in the said figures, a-shaft 23 provided with a wing piece 24 is provided with loose spur gears 22 which are held at their proper distances by :rings pose-thetaxis 23 is mounted on a slide which is adapted to be shifted in transverse and .rectilineardirection, or, as shown, it .is supported on arms 27 which are pivotally mounted at 26and are adapted to be rocked inthe direction of an arrow y shown in Fig. 5 by means of a bail 28. The bail 28 is formed with :notches 28 by means of which it can be fixed .within a slot provided at the :rear wall29 of :thecasing-of the machine, as will readily be :understood from an inspection :of Fig. 5. 'lVhile setting a value'on the-settingdisks30 in the direction of the arrow 00, the gear wheels 22 are dis connected from ithe camdisks 25. Before setting the gear wheels 30 "to zero, which may be done simultaneously in all the :settingdisks for exampleaby means of a shaft- 32 which is equipped with arms 31 and acts-on theteeth2'5 of the cam disks 25,-all the wheels 22 are thrown into engagement with the teeth 25 provided on the cam disks25. Therefore when the cam disks are being set to zero, the said gear wheels move :from theirzero positions inthe direction ofthearroweandintoa position which corresponds to the value which .had been setzon the cam disks. If it is desired to-set the .same value again in the same setting mechanism, the wheels 22 are'at firstthrown into'engagement .withthe teeth 25 by means ofthebail 28. Thereupon the thumb piece 24: is turned in the direction opposite to the arrow 2, so that a .resetting mechanism ofthe shaft, which consists of pins 34; and stop :members 35 returns all the wheels 22 into zero position and thereby-sets the cor-- responding zvalue on thecam disks 25. A stop :member of any desired construction mayindicatethe Zerozposition of the thumb nut. Also-this apparatus is constructed in sucha away as topermit transmission ofathe values to a second setting mechanism 36. For this purpose the wheels 22 are axially shiftable as a whole onithe shaft23, so'that they can %be brought into engagement with the camdisks 37 ofthe-second setting mech anism 36. Afterreceiving a value from the cam disks 25 the wheels 22 ,are thrown out ofengagement with'the teeth 25 by means of=the bail :28, whereupon they are shifted bymeans of the-said bail 28 on theshaft 23 to'the left and in position for cooperation with the settingimechanism 36, in which.po sitio-nthey'are coupled with the-cam disks 37-0f the said settingmechanism. By resetting the wheels -22 by means of the thumb piece 214 all the wheels'of the second setting mechanism are set. The resetting pins 34 of the shaft .23 :must take part in the axial displacement :of the wheels ,22. Therefore they can not be rigidly (connected -.with t-he shaft. As appears from Fig. the said pins are secured to a hollow shaft 38 which is connected with the shaft 23 inclosed thereby by a groove and feather key, and which has all the wheels 22 rotatably mounted thereon. The hollow shaft 38 is inclosed between the ends 28" of the bail 28 so as to take part in the axial displacement of the same.

If it is desired to avoid the long shaft which in the construction shown in Figs. 5 and 6 is provided for the axially shiftable wheels 22, a construction such as is shown in Figs. 7 and 8 may be provided. As shown in these figures, the arms 27 which hold the shaft 23 and the transmission wheels 22 have a rocking support on pivots 26 mounted on a slide 39. As shown the latter is shiftable in guide ways 41 provided on the base plate 42 of the machine. The means for shifting the slide may be constructed in different ways. To show what may be done a bail 40 is provided which holds all the wheels 22 together and holds the shaft in its bearings.

In order that the displacements of the transmission wheels be not too large, separate transmission wheels 22 may be provided for each setting mechanism, in which case the sets of wheels can alternately be thrown into engagement with the teeth of the cooperating cam disks. A construction of this kind has been shown in a diagram matical way in Figs. 9 to 11. In these fig ures each setting mechanism is represented by only one of its setting disks, cam disks and cooperating transmission wheels. This construction is distinguished from the examples shown in Figs. 3 to 8 in this respect, that for each wheel of one of the groups of transmission wheels a separate shaft is provided which also carries the corresponding transmission wheel of the other grou or is operatively connected with the shaft of the said wheel. In the example shown in Fig. 9 the transmission wheel 43 of the setting disk 44 and cam disk 45 of the right hand setting mechanism is secured to a shaft 46 which extends to the second setting mechanism and which has the transmission wheel 43 of the setting disk 44, 45 of the left hand setting mechanism secured thereto.

The wheels 43 and 43 are disposed at such distances apart, that only one of them is at a time in engagement with its cam disks 45 or 45, as will be understood from an inspection of Fig. 9. The shaft 46 is axially shiftable in its bearings 47 by means of a button 48 or otherwise, so that the wheels 43 and 45 can be thrown out of engagement with each other and the wheels 43 and 45 can be connected with each other. In the example shown in Fig. 10 the transmission wheels 49 and 49 are likewise mounted on the same shaft 50. But they are mounted in such a way, that only one of them is at a time locked to the shaft 50. To effect this the keys 52 and 52 which are provided for securing the wheels to the shaft 50 are disposed at a smaller distance from each other than the wheels 49 and 49. Also in this case the shaft 50 can be shifted in axial direction, so that by shifting the same to the left or in the direction of the arrow u it is disconnected from the wheel 49, and wheels 49 and 49 are constantly in engagement with the setting disks 53, 54, and 53 and 54, except however when they are thrown out of engagement with the setting disks for receiving the set values, as has been described with reference to Figs. 5 to 8. In the example shown in Fig. 11 the transmission wheel 55 is adapted to be coupled with the shaft 57 of the wheel 55 which belongs to the second setting mechanism, or with the said wheel itself. As shown a clutch 58, 59 is provided for this purpose.

I claim herein as my invention:

In a calculating machine, the combination with a plurality of setting mechanisms comprising setting disks having a variable number of operative teeth, of mechanism adapted to receive a value set in one of the setting mechanisms, and means to throw the said mechanism into engagement with another setting mechanism for transmitting the received value thereto.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

FRANZ TRINKS.

Witnesses:

WILHELM LEHRKE, JULIUS SECKEL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

